diff --git a/app/run_snow_annual_map.py b/app/run_snow_annual_map.py
index 12195b4a247ff93089807ff2d6f0a458ae7f0201..ed91975feed27ab04a5322f0a527f9687377d496 100644
--- a/app/run_snow_annual_map.py
+++ b/app/run_snow_annual_map.py
@@ -98,7 +98,7 @@ def main(argv):
     if not os.path.exists(path_out):
         logging.info("Create directory {} ...".format(path_out))
         os.makedirs(path_out)
-    logging.debug("Path_out is: {}", path_out)
+    logging.debug("Path_out is: {}".format(path_out))
 
     path_tmp = str(params.get("path_tmp", os.path.join(path_out,"tmp")))
     if not os.path.exists(path_tmp):